?-D-Galp-(1->?)-?-D-GalpNAc-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Manp-(1->?)[?-D-GlcpNAc-(1->?)-?-D-Manp4/6S-(1->?)]-?-D-Manp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-GlcpNAc-(1->
